I've recently acquired a new toy, namely a Samsung Galaxy Note 8.0, running android 4.1.2. I'm not sure if it's the OS, or the device, or a combination of the two, but the USB capabilities are significantly better than my HTC phone on 4.0.3.
Firstly I can connect a USB HD or memory stick (or even my HTC phone's SD card) to the device and reference/update the data within it...providing they're not NTSC format (FAT32 is fine). These are accessible via the 'MyFiles' app, which offers 'windows explorer' functionality.
Secondly I've successfully attached my FiiO E10 DAC/HP amp to it, (although unfortunately my rPAC doesn't work)...this was using 'Poweramp' and playing FLAC.
I assume that due to their similarity to the Note 8.0, the S3 and S4 phones will also have these capabilities, presumably they'll need Jellybean or later...
Has anyone found any other Android devices with this capability, and also which DACs are compatible?